Touch display apparatus having multiplexing function of data lines and driving method thereof

A driving method for the touch display apparatus, comprising:

• at a first moment, combining a plurality of data lines so as to be multiplexed as a plurality of sensing electrodes, and applying a touch detection driving signal to first common electrodes, in order to perform a touch operation based on the touch detection driving signal;
• and
• at a second moment, applying a display driving signal to the first common electrodes, and applying a pixel signal to pixel electrodes, in order to perform a display based on the display driving signal and the pixel signal, wherein the touch display apparatus comprises:
• a plurality of gate lines, a plurality of data lines, pixel electrodes and thin film transistors, wherein the touch display apparatus further comprises a plurality of first common electrodes, the plurality of first common electrodes are disposed to be intersected and insulated with the plurality of data lines, and are used for receiving a touch detection driving signal to form touch driving electrodes at a first moment, and for receiving a display driving signal at a second moment;
• the plurality of data lines are combined as sensing electrodes so as to form a mutual-capacitance structure with the touch driving electrodes, at the first moment;
• and
• the pixel electrodes is used for receiving a pixel signal so as to display in cooperation with the first common electrodes, at the second moment,
• wherein the touch display apparatus at the first moment further comprise second sensing electrodes which are formed by second common electrodes disposed in parallel with the plurality of data lines,
• during the first moment, the plurality of data lines and the second common electrodes are not connected to each other and the sensing electrodes formed by the plurality of data lines and the second sensing electrodes formed by the second common electrodes sense the touch signals separately.